Created two fields in the edit task screen, report and evaluation, and a report dialog window in the task list when the user completes the task.

I created 8 drawables. 4 of them as .gif and .jpg and then I changed them to .png, but for some reason except from the .png there are the previous ,jpg and .gif drawables. 
This will cause errors in the compiler. Delete the .gif and .jpg drawables and it should work.
Also there is a mulfunction in the report dialog that is explained in documentation.